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286 lines
10 KiB
286 lines
10 KiB
// Copyright 2016 PDFium Authors. All rights reserved. |
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// Use of this source code is governed by a BSD-style license that can be |
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// found in the LICENSE file. |
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
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#include "fpdfsdk/cpdfsdk_widgethandler.h" |
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#include <memory> |
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#include <vector> |
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#include "core/fpdfapi/page/cpdf_page.h" |
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#include "core/fpdfapi/parser/cpdf_document.h" |
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#include "core/fpdfdoc/cpdf_interform.h" |
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#include "fpdfsdk/cpdfsdk_annot.h" |
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#include "fpdfsdk/cpdfsdk_formfillenvironment.h" |
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#include "fpdfsdk/cpdfsdk_interform.h" |
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#include "fpdfsdk/cpdfsdk_pageview.h" |
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#include "fpdfsdk/cpdfsdk_widget.h" |
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#include "fpdfsdk/formfiller/cffl_formfiller.h" |
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#ifdef PDF_ENABLE_XFA |
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#include "fpdfsdk/fpdfxfa/cpdfxfa_context.h" |
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#endif // PDF_ENABLE_XFA |
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CPDFSDK_WidgetHandler::CPDFSDK_WidgetHandler( |
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CPDFSDK_FormFillEnvironment* pFormFillEnv) |
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: m_pFormFillEnv(pFormFillEnv), m_pFormFiller(nullptr) {} |
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CPDFSDK_WidgetHandler::~CPDFSDK_WidgetHandler() {} |
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bool CPDFSDK_WidgetHandler::CanAnswer(CPDFSDK_Annot* pAnnot) { |
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ASSERT(pAnnot->GetAnnotSubtype() == CPDF_Annot::Subtype::WIDGET); |
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if (pAnnot->IsSignatureWidget()) |
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return false; |
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CPDFSDK_Widget* pWidget = static_cast<CPDFSDK_Widget*>(pAnnot); |
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if (!pWidget->IsVisible()) |
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return false; |
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int nFieldFlags = pWidget->GetFieldFlags(); |
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if ((nFieldFlags & FIELDFLAG_READONLY) == FIELDFLAG_READONLY) |
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return false; |
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if (pWidget->GetFieldType() == FIELDTYPE_PUSHBUTTON) |
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return true; |
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CPDF_Page* pPage = pWidget->GetPDFPage(); |
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CPDF_Document* pDocument = pPage->m_pDocument; |
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uint32_t dwPermissions = pDocument->GetUserPermissions(); |
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return (dwPermissions & FPDFPERM_FILL_FORM) || |
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(dwPermissions & FPDFPERM_ANNOT_FORM); |
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} |
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CPDFSDK_Annot* CPDFSDK_WidgetHandler::NewAnnot(CPDF_Annot* pAnnot, |
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CPDFSDK_PageView* pPage) { |
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CPDFSDK_InterForm* pInterForm = m_pFormFillEnv->GetInterForm(); |
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CPDF_FormControl* pCtrl = CPDFSDK_Widget::GetFormControl( |
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pInterForm->GetInterForm(), pAnnot->GetAnnotDict()); |
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if (!pCtrl) |
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return nullptr; |
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CPDFSDK_Widget* pWidget = new CPDFSDK_Widget(pAnnot, pPage, pInterForm); |
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pInterForm->AddMap(pCtrl, pWidget); |
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CPDF_InterForm* pPDFInterForm = pInterForm->GetInterForm(); |
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if (pPDFInterForm && pPDFInterForm->NeedConstructAP()) |
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pWidget->ResetAppearance(nullptr, false); |
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return pWidget; |
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} |
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#ifdef PDF_ENABLE_XFA |
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CPDFSDK_Annot* CPDFSDK_WidgetHandler::NewAnnot(CXFA_FFWidget* hWidget, |
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CPDFSDK_PageView* pPage) { |
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return nullptr; |
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} |
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#endif // PDF_ENABLE_XFA |
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void CPDFSDK_WidgetHandler::ReleaseAnnot(CPDFSDK_Annot* pAnnot) { |
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ASSERT(pAnnot); |
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if (m_pFormFiller) |
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m_pFormFiller->OnDelete(pAnnot); |
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std::unique_ptr<CPDFSDK_Widget> pWidget(static_cast<CPDFSDK_Widget*>(pAnnot)); |
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CPDFSDK_InterForm* pInterForm = pWidget->GetInterForm(); |
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CPDF_FormControl* pControl = pWidget->GetFormControl(); |
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pInterForm->RemoveMap(pControl); |
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} |
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void CPDFSDK_WidgetHandler::OnDraw(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot* pAnnot, |
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CFX_RenderDevice* pDevice, |
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CFX_Matrix* pUser2Device, |
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bool bDrawAnnots) { |
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if (pAnnot->IsSignatureWidget()) { |
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static_cast<CPDFSDK_BAAnnot*>(pAnnot)->DrawAppearance( |
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pDevice, pUser2Device, CPDF_Annot::Normal, nullptr); |
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} else { |
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if (m_pFormFiller) |
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m_pFormFiller->OnDraw(pPageView, pAnnot, pDevice, pUser2Device); |
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} |
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} |
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void CPDFSDK_WidgetHandler::OnMouseEnter(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlag) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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m_pFormFiller->OnMouseEnter(pPageView, pAnnot, nFlag); |
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} |
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void CPDFSDK_WidgetHandler::OnMouseExit(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlag) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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m_pFormFiller->OnMouseExit(pPageView, pAnnot, nFlag); |
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} |
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bool CPDFSDK_WidgetHandler::OnLButtonDown(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnLButtonDown(pPageView, pAnnot, nFlags, point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnLButtonUp(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnLButtonUp(pPageView, pAnnot, nFlags, point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnLButtonDblClk(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnLButtonDblClk(pPageView, pAnnot, nFlags, point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnMouseMove(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnMouseMove(pPageView, pAnnot, nFlags, point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnMouseWheel(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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short zDelta, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnMouseWheel(pPageView, pAnnot, nFlags, zDelta, |
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point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnRButtonDown(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnRButtonDown(pPageView, pAnnot, nFlags, point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnRButtonUp(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnRButtonUp(pPageView, pAnnot, nFlags, point); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnRButtonDblClk(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlags, |
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const CFX_PointF& point) { |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnChar(CPDFSDK_Annot* pAnnot, |
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uint32_t nChar, |
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uint32_t nFlags) { |
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if (!pAnnot->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnChar(pAnnot, nChar, nFlags); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnKeyDown(CPDFSDK_Annot* pAnnot, |
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int nKeyCode, |
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int nFlag) { |
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if (!pAnnot->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnKeyDown(pAnnot, nKeyCode, nFlag); |
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return false; |
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} |
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bool CPDFSDK_WidgetHandler::OnKeyUp(CPDFSDK_Annot* pAnnot, |
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int nKeyCode, |
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int nFlag) { |
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return false; |
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} |
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void CPDFSDK_WidgetHandler::OnLoad(CPDFSDK_Annot* pAnnot) { |
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if (pAnnot->IsSignatureWidget()) |
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return; |
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CPDFSDK_Widget* pWidget = static_cast<CPDFSDK_Widget*>(pAnnot); |
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if (!pWidget->IsAppearanceValid()) |
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pWidget->ResetAppearance(nullptr, false); |
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int nFieldType = pWidget->GetFieldType(); |
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if (nFieldType == FIELDTYPE_TEXTFIELD || nFieldType == FIELDTYPE_COMBOBOX) { |
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bool bFormatted = false; |
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CFX_WideString sValue = pWidget->OnFormat(bFormatted); |
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if (bFormatted && nFieldType == FIELDTYPE_COMBOBOX) |
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pWidget->ResetAppearance(&sValue, false); |
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} |
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#ifdef PDF_ENABLE_XFA |
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CPDFSDK_PageView* pPageView = pAnnot->GetPageView(); |
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CPDFXFA_Context* pContext = pPageView->GetFormFillEnv()->GetXFAContext(); |
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if (pContext->GetDocType() == DOCTYPE_STATIC_XFA) { |
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if (!pWidget->IsAppearanceValid() && !pWidget->GetValue().IsEmpty()) |
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pWidget->ResetAppearance(false); |
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} |
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#endif // PDF_ENABLE_XFA |
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} |
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bool CPDFSDK_WidgetHandler::OnSetFocus(CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlag) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnSetFocus(pAnnot, nFlag); |
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return true; |
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} |
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bool CPDFSDK_WidgetHandler::OnKillFocus(CPDFSDK_Annot::ObservedPtr* pAnnot, |
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uint32_t nFlag) { |
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if (!(*pAnnot)->IsSignatureWidget() && m_pFormFiller) |
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return m_pFormFiller->OnKillFocus(pAnnot, nFlag); |
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return true; |
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} |
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#ifdef PDF_ENABLE_XFA |
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bool CPDFSDK_WidgetHandler::OnXFAChangedFocus( |
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CPDFSDK_Annot::ObservedPtr* pOldAnnot, |
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CPDFSDK_Annot::ObservedPtr* pNewAnnot) { |
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return true; |
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} |
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#endif // PDF_ENABLE_XFA |
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CFX_FloatRect CPDFSDK_WidgetHandler::GetViewBBox(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot* pAnnot) { |
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if (!pAnnot->IsSignatureWidget() && m_pFormFiller) |
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return CFX_FloatRect(m_pFormFiller->GetViewBBox(pPageView, pAnnot)); |
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return CFX_FloatRect(0, 0, 0, 0); |
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} |
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bool CPDFSDK_WidgetHandler::HitTest(CPDFSDK_PageView* pPageView, |
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CPDFSDK_Annot* pAnnot, |
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const CFX_PointF& point) { |
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ASSERT(pPageView); |
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ASSERT(pAnnot); |
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return GetViewBBox(pPageView, pAnnot).Contains(point); |
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}
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